diff --git a/yarn-project/p2p/src/mem_pools/instrumentation.ts b/yarn-project/p2p/src/mem_pools/instrumentation.ts
index 0ae6e4a90e9..d80b2f69d55 100644
--- a/yarn-project/p2p/src/mem_pools/instrumentation.ts
+++ b/yarn-project/p2p/src/mem_pools/instrumentation.ts
@@ -3,7 +3,7 @@ import {
   Attributes,
   type Histogram,
   LmdbMetrics,
-  LmdbStatsCallback,
+  type LmdbStatsCallback,
   Metrics,
   type TelemetryClient,
   type UpDownCounter,
diff --git a/yarn-project/prover-client/src/proving_broker/factory.ts b/yarn-project/prover-client/src/proving_broker/factory.ts
index 11840b3e716..67295fb6011 100644
--- a/yarn-project/prover-client/src/proving_broker/factory.ts
+++ b/yarn-project/prover-client/src/proving_broker/factory.ts
@@ -1,6 +1,6 @@
 import { type ProverBrokerConfig } from '@aztec/circuit-types';
 import { AztecLmdbStore } from '@aztec/kv-store/lmdb';
-import { TelemetryClient } from '@aztec/telemetry-client';
+import { type TelemetryClient } from '@aztec/telemetry-client';
 
 import { ProvingBroker } from './proving_broker.js';
 import { InMemoryBrokerDatabase } from './proving_broker_database/memory.js';
diff --git a/yarn-project/prover-client/src/proving_broker/proving_agent.ts b/yarn-project/prover-client/src/proving_broker/proving_agent.ts
index d734d7879cc..333ac91a4a9 100644
--- a/yarn-project/prover-client/src/proving_broker/proving_agent.ts
+++ b/yarn-project/prover-client/src/proving_broker/proving_agent.ts
@@ -11,7 +11,7 @@ import {
 import { createDebugLogger } from '@aztec/foundation/log';
 import { RunningPromise } from '@aztec/foundation/running-promise';
 import { Timer } from '@aztec/foundation/timer';
-import { TelemetryClient } from '@aztec/telemetry-client';
+import { type TelemetryClient } from '@aztec/telemetry-client';
 
 import { type ProofStore } from './proof_store.js';
 import { ProvingAgentInstrumentation } from './proving_agent_instrumentation.js';
diff --git a/yarn-project/prover-client/src/proving_broker/proving_agent_instrumentation.ts b/yarn-project/prover-client/src/proving_broker/proving_agent_instrumentation.ts
index fa5f1858ff8..2b1b98ad1b7 100644
--- a/yarn-project/prover-client/src/proving_broker/proving_agent_instrumentation.ts
+++ b/yarn-project/prover-client/src/proving_broker/proving_agent_instrumentation.ts
@@ -1,6 +1,5 @@
-import { ProvingRequestType } from '@aztec/circuit-types';
 import { Timer } from '@aztec/foundation/timer';
-import { Attributes, Histogram, Metrics, TelemetryClient, UpDownCounter, ValueType } from '@aztec/telemetry-client';
+import { type Histogram, Metrics, type TelemetryClient, ValueType } from '@aztec/telemetry-client';
 
 export class ProvingAgentInstrumentation {
   private idleTime: Histogram;
@@ -9,7 +8,7 @@ export class ProvingAgentInstrumentation {
     const meter = client.getMeter(name);
 
     this.idleTime = meter.createHistogram(Metrics.PROVING_AGENT_IDLE, {
-      description: 'Records how long an agent was in between jobs',
+      description: 'Records how long an agent was idle',
       unit: 'ms',
       valueType: ValueType.INT,
     });
diff --git a/yarn-project/prover-client/src/proving_broker/proving_broker.ts b/yarn-project/prover-client/src/proving_broker/proving_broker.ts
index bb08da40942..1c73b62b84a 100644
--- a/yarn-project/prover-client/src/proving_broker/proving_broker.ts
+++ b/yarn-project/prover-client/src/proving_broker/proving_broker.ts
@@ -13,12 +13,12 @@ import { createDebugLogger } from '@aztec/foundation/log';
 import { type PromiseWithResolvers, RunningPromise, promiseWithResolvers } from '@aztec/foundation/promise';
 import { PriorityMemoryQueue } from '@aztec/foundation/queue';
 import { Timer } from '@aztec/foundation/timer';
-import { TelemetryClient } from '@aztec/telemetry-client';
+import { type TelemetryClient } from '@aztec/telemetry-client';
 
 import assert from 'assert';
 
 import { type ProvingBrokerDatabase } from './proving_broker_database.js';
-import { MonitorCallback, ProvingBrokerInstrumentation } from './proving_broker_instrumentation.js';
+import { type MonitorCallback, ProvingBrokerInstrumentation } from './proving_broker_instrumentation.js';
 
 type InProgressMetadata = {
   id: ProvingJobId;
@@ -111,7 +111,7 @@ export class ProvingBroker implements ProvingJobProducer, ProvingJobConsumer {
     return count;
   };
 
-  public async start(): Promise<void> {
+  public start(): Promise<void> {
     for (const [item, result] of this.database.allProvingJobs()) {
       this.logger.info(`Restoring proving job id=${item.id} settled=${!!result}`);
 
@@ -131,6 +131,8 @@ export class ProvingBroker implements ProvingJobProducer, ProvingJobConsumer {
 
     this.instrumentation.monitorQueueDepth(this.measureQueueDepth);
     this.instrumentation.monitorActiveJobs(this.countActiveJobs);
+
+    return Promise.resolve();
   }
 
   public stop(): Promise<void> {
diff --git a/yarn-project/prover-client/src/proving_broker/proving_broker_database/persisted.ts b/yarn-project/prover-client/src/proving_broker/proving_broker_database/persisted.ts
index 4d6262691bf..61ca5232015 100644
--- a/yarn-project/prover-client/src/proving_broker/proving_broker_database/persisted.ts
+++ b/yarn-project/prover-client/src/proving_broker/proving_broker_database/persisted.ts
@@ -1,7 +1,7 @@
 import { type ProofUri, ProvingJob, type ProvingJobId, ProvingJobSettledResult } from '@aztec/circuit-types';
 import { jsonParseWithSchema, jsonStringify } from '@aztec/foundation/json-rpc';
 import { type AztecKVStore, type AztecMap } from '@aztec/kv-store';
-import { LmdbMetrics, Metrics, TelemetryClient } from '@aztec/telemetry-client';
+import { LmdbMetrics, Metrics, type TelemetryClient } from '@aztec/telemetry-client';
 
 import { type ProvingBrokerDatabase } from '../proving_broker_database.js';
 
diff --git a/yarn-project/telemetry-client/src/lmdb_metrics.ts b/yarn-project/telemetry-client/src/lmdb_metrics.ts
index 6cc11696e79..7a261769e86 100644
--- a/yarn-project/telemetry-client/src/lmdb_metrics.ts
+++ b/yarn-project/telemetry-client/src/lmdb_metrics.ts
@@ -1,4 +1,4 @@
-import { BatchObservableResult, type Meter, type Metrics, ObservableGauge, ValueType } from './telemetry.js';
+import { type BatchObservableResult, type Meter, type Metrics, ObservableGauge, ValueType } from './telemetry.js';
 
 export type LmdbMetricDescriptor = {
   name: Metrics;
diff --git a/yarn-project/telemetry-client/src/telemetry.ts b/yarn-project/telemetry-client/src/telemetry.ts
index ad8c7092ee1..60e55b8b1c6 100644
--- a/yarn-project/telemetry-client/src/telemetry.ts
+++ b/yarn-project/telemetry-client/src/telemetry.ts
@@ -1,8 +1,8 @@
 import {
   type AttributeValue,
-  BatchObservableCallback,
+  type BatchObservableCallback,
   type MetricOptions,
-  Observable,
+  type Observable,
   type BatchObservableResult as OtelBatchObservableResult,
   type Gauge as OtelGauge,
   type Histogram as OtelHistogram,